Run Jest-compatible unit tests for Vite projects with watch mode and coverage.
npx skills add https://github.com/JetBrains/skills --skill vitest-jetbrains
Please help me install this Agent Skill. Skill: vitest Source: https://github.com/JetBrains/skills/tree/main/vitest Command: npx skills add https://github.com/JetBrains/skills --skill vitest-jetbrains
Vitest addresses the need for fast, predictable unit tests in Vite-based projects by providing a developer-friendly test runner with a Jest-compatible API, zero-config feel, and first-class support for modern JS/TS features.
This enables teams to write stable tests that scale from small unit tests to cross-file coverage while integrating with TypeScript, fixtures, and custom reporters.
Install Vitest, write tests with test/describe/expect, and run it with vitest.
High-intent search queries and answers about installing and using this skill.
Run unit tests for a Vite project with native ESM support using Vitest, a Vite-native test runner that provides configuration-free execution and a Jest-compatible API for your test suites.
Yes, you can use Jest-compatible mocks and snapshots when testing Vite apps because this runner provides a familiar API covering test, describe, expect, mocks, and snapshot functionalities out of the box.
Yes, the test runner supports TypeScript and parallel test execution, enabling fast and reliable feedback across modern frontend and Node environments without requiring configuration.
The best way to configure multi-project unit testing for large Vite codebases is using Vitest, which supports multi-project workflows, watch mode, and custom reporters to scale test execution reliably.
Generate code coverage reports for Vite unit tests using the built-in coverage functionality of this test runner, which integrates directly into the Vite-native execution pipeline to track cross-file coverage.
A Vite-native test runner is optimized specifically for Vite-based projects and modern ESM, meaning it may not suit older CommonJS-heavy environments outside the Vite ecosystem, unlike the broadly compatible Jest.
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